Olympians

Greek mythology, were the principal gods/deities of the Greek pantheon, residing atop Mount Olympus. The Twelve Olympians gained their supremacy in the world of gods after Zeus led his siblings to victory in war with the Titans. Zeus, Hera, Poseidon, Demeter, Hestia, Hades, and Chiron (who was not a god, but a trainer to the children of the gods, also known as demigods) were siblings. Ares, Hermes, Hephaestus, Aphrodite, Athena, Apollo, Artemis, the Charites, Heracles, Dionysus, Hebe, and Persephone were children of Zeus. Some versions of the myths state that Hephaestus was born of Hera alone, and that Aphrodite was born of Uranus' blood.

The first ancient reference of religious ceremonies for them is found in the Homeric Hymn to Hermes. The Greek cult of the Twelve Olympians can be traced to the 6th century BC Athens and probably has no precedent in the Mycenaean period. The altar to the Twelve Olympians at Athens is usually dated to the archonship of the younger Pesistratos, in 522/521 BC. The concept of the "Twelve Gods" is older than any of our Greek or Roman sources, and is likely of Anatolian origin. There seems to have been a great deal of fluidity when it came to who was counted among their number in antiquity.